lawnmowers is this good to keep the system clean while using it and not just when storing it?

I've been using it in all the fuels for my mower, 2-stroke mixes, and my motorcycle and all three have been surprisingly clean, especially the two stroke motors.

Is this to be used prior to an oil change?

If it's like 500 miles before an oil change, that's OK. You can also use after an oil change, but TECHRON recommends NOT to use more than twice during a new oil change. I use during the last 500 miles (whole bottle) on near empty tank & run the car until the reserve light comes on. Been using this for at least 20 years. If the car runs rough, you can pour in a bottle twice, like every 2,500 miles, or repeat the process, whichever you want to do. For best results, try & do as much highway driving after pouring in & make sure to drive at least 5-10 miles to get it up in the lines & all before turning the engine off. Since you're going to be at the gas station & pouring in before refilling the tank, this is a good time. Good Luck!

What is the ratio of additive to fuel? Can it be used in nonethanol fuel?

1 oz per 10 gallons. It can be used in nonethanol fuel.

Can you reseal the 20 oz bottle and use the rest later?

You can't physically reseal the paper tab, but yes you can screw the cap back on & it will keep it sealed for later use. However, this will not guarantee the same 5 year shelf life.

Techron 266711163 High Mileage Fuel System Cleaner

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Description

🚗💨 Keep your engine young, your ride smooth, and your fuel wallet happy!

LONG HAUL READY - Formulated for vehicles over 75,000 miles to extend engine life
CORROSION SHIELD - Advanced inhibitors guard iron, copper & silver components
ETHANOL COMPATIBLE - Safe and effective with E10, E85 blends—future-proof your ride
ENGINE POWER REBORN - Eradicates gum & varnish to unleash lost horsepower
FUEL EFFICIENCY MAXIMIZER - Cleans fuel system to optimize every drop of gasoline

Chevron’s Techron High Mileage Fuel System Cleaner is a premium additive designed for gasoline engines with over 75,000 miles. It removes deposits like gum and varnish, protects metal components from corrosion, and enhances fuel efficiency. Compatible with ethanol blends, it supports smoother idling, better acceleration, and prolonged engine life without harming catalytic converters or oxygen sensors.

Specifications

ASIN	B086FJV5J8
Amazon Bestseller	#151,149 in Automotive ( See Top 100 in Automotive ) #905 in Oil System Tools
Brand	Chevron
Color	High Mileage Fuel System Cleaner
Customer Reviews	4.7 4.7 out of 5 stars (1,326)
Date First Available	November 28, 2020
Item Dimensions L x W x H	8 x 6.8 x 22.6 cm
Item Weight	340 g
Item model number	266711163
Manufacturer	Chevron
Model	Techron High Mileage Fuel System Cleaner
Product Dimensions	8.02 x 6.77 x 22.6 cm; 340 g

Reviews

J**Z

Que sea un artículo que cumpla con controles de calidad.

Hola Buenos días, en lo particular este producto es de buena calidad y si creo que cumple con las necesidades.

29.01.2026

م**ا

ممتاز

انا فخور جدا بالمنتج اصلي ١٠٠%

23.05.2026

A**N

Great Cleaner That Helps High Mileage Cars Run Smoothly

The Chevron Techron High Mileage Fuel System Cleaner works exactly as advertised. After using it, my engine runs smoother and idles more quietly, and I’ve noticed better acceleration and fuel efficiency. It’s easy to use—just pour it into the gas tank—and one bottle goes a long way. Perfect for keeping older vehicles in good shape. A solid product I’ll keep using regularly. 🚗⛽✨

4.10.2025

D**I

Very fast delivery

Fast delivery and all good.

16.05.2026

M**L

Excelente

funciona perfectamente, limpia y devuelve la potencia al motor.

16.09.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

฿3582

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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TECHRON 266711163 High Mileage Fuel System Cleaner

Description

Specifications

Reviews

Common Questions